Timer attachment



N. lsacusou. TIMERJTTACHMENT. APPLICATION FILED H28. 18- I919.

1,336,296, Patented Apr. 6, 1920;

Inventor. .mz-mnlkachwn,

1 xvi a PATENT OFFICE.

1101mm rsacnson, or ALBION, mime.

rmna Armcnmnnr.

4 Specification of Letters Patent.

Patented Apr. 6, 1920;

Application filed February 15, 1919. Serial No. 277,854.

To all whom it may concern:

Be it known that I, Norman Isscnsoa, a citizen of the United States, and resident of Albion, Idaho, have invented certain n w and useful Improvements in Timer Attack ments, of which the following is a spool.

cation. My tpresent invention relates to an attach ment or timers for internal combustion engines, and aims to provide what I term an extension terminal which is readily applicable to all the timers, such as are customarily used in connection with Ford engines, though applicable to all engines using timers of this type.

My attachment is designed to provide a construction in which all the movements or twistin of the conducting wires is eliminated uring advance and retardin of the spark, thns removin the liability 0 breakage, and in which t 0 wires orconductors are protected from the deleterious action of oil and grease.

The invention includestlie novel features of construction and arrangement and combination of arts hereinafter, described and defined b t e appended claims.

An em diment of my invention is illustrated in the accompanying drawings, in

which,

Fi re 1 is a plan view of my improved attac ment.

Fig. 2 is an edge view, and, Fig. 3 is a view showin the attachment as a plied to an engine rame and timer whic latter, as it forms per se no part of theLpre sent invention, is not shown in de tai Fi 4 and 4* are detail views of the holdi c ips'.

J eferring by reference characters to this drawing the numeral 1 designates the oscillating element which is rocked in one direction or the other to advance or retard the s ark in the manner well understood by t ose skilled in the art, and 2 the binding posts correspondin in number to the numer of cylinders o the engine, four being shown in the present instance, to which binding posts the wires or conductors leading to the spark plugs are connected.

3 designates my extension device or attachlnent which bass. ring-shaped portion 3" and an extension [or bo y 3 of suitable len th.

'fhe open center of the ring shaped portion is desi ed to fit around and encircle the cylindrical or circular body lot the timer, soas to permit the latter to freely oscillate within said open center, and be held on the head 4 of the en ine by two clamping plates or clips 5 and; 5*. secured iniosition h theengine head stud bolts 4" an 4"" In t e draw ngl the engine hea d is regresented as that of t e Ford-engine. with a series of annularly arranged are shaped spring contacts 6 corresponding in number with the number of bindin osts, and, these s ring members 6 are esigned to make rub ing contact with the nuts on the binding Posts of the timer, it being understood that the distributing wires are disconnected therefrom.

As the distance of the binding posts from the face of the timer vary somew at with different makes I find it desirable 0 usea s rin contact member having a part oub ed back upon the body to provide for greater adjustment while maintaining. the contact; force inparallelism with the plane of the binding posts, the extremities of the contact faces being curved as shown at 6* and 6. p

These contact springs are connected to the body 3 by screws 7 engaging nut members 8, which also serve to connect the ends or terminals of wires'or conductors 9 to said spring contacts.

- The wires 9, which are insulated from each other, extend lon itudinall of the body 3 to or near the end't ereof, where the are connected to binding posts 10, to whic the ordinary distributing wires are connected.

I prefer to construct the body 3 of insulating material and referably also of two or more la ers, as indicated at 2 and 3, which may e conveniently secured by folding the strip at c, the free ends of the layers bem secured together by the binding posts 10. his enables me to easily lay the conductors 9 in position, secures complete insulation of the wires, and effectually excludes oil and dirt therefrom, when properly coated.

From the foregoing description it will be readily-seen that I provide a very simple and economical attachment which may be readily attached by any unskilled person to the ordinary en inc, and which will keep the conductors e evated. arid protected from oil and dirt and free from the repeated twisting movement to which they are customarily subjected. It will be further observed that as the contact between the spring members and binding posts of the timer is a rubbing contact good electri al connection will alwa s be assured.

What claim is:

1. An attachment for multiple cylinder enine timers comprising a ring-shaped mem or adapted to be secured to the engine casing in proximity to the oscillating member of the timer, a plurality of elongated yielding contact members carried by said memher, said contact members being curved on arcs of circles concentric to the axis of said oscillatory member and adapted to make rubbing contact with the binding posts of said oscillating member, and means for connectin the said spring contacts to the engin'e distributing conductors.

2. An attachment for multi-cylinder engine timers comprising a member formed of two layers of material suitably secured together, said member having a ring shaped portion at one end, a plurality of annularly arranged elongated spring contacts carried by said ring shaped portion, conductors con fined between said layers and connected to said sprin contacts at one end, and binding posts or theother ends of said conductors.

3. The combination with the c lindrical oscillatory member of a multi-cy inder engine timer having projecting posts, of a member having a ring shaped portion adapted to he slipped over said cylindrical portion, a plurality of spring contacts carried by said ring shaped portion, said contacts 'being curved on arcs of circles concentric with the center of said rin and adapted to make rubbing contact with the PI'OJGCtlIl binding posts, and means for clamping sai member to the engine casing.

4. The combination with the c lindrical oscillatory member of a multi-cy inder en gine timer having binding posts Erojectin outwardly from the peri hery t ereof, o a member havin a ring s a ed portion encircling said osci latory mem er, a lurality of annularly arranged elongate spring contacts carried b said ring shaped portion, said contacts ein carved on arcs concentric with said osci latory member and ads ted to make rubbing contact with said bin ing posts, and conductors connected to said spring contacts.

n attachment for engine timers comprisin a flat elongated member havin a ring s aped portion at'one end, a plurality of annularly arranged arc-shaped spring contacts secured to one face of said ring portion, binding posts carried by the other end of said member, and conductors connecting said spring contacts with said binding posts 6, The combination of the oscillatory member of a multi-cylinder on his timer having radially extending hinting posts, of an elongated member having a ring shaped portion to encircle said oscillatory member, a plurality of annularly arranged elongated arc-shaped spring contacts secured to one face of said ring shaped portion and adapted to bear against the sides of said binding posts and conductors carried by said member and connected to said spring contacts.

In testimony whereof, I aflix my signature.

NORMAN ISACHSON. 

